Home / 3,066.15-4,230.39-1,789.80

Finding the Fourth Proportional to 3,066.15, 4,230.39 and 1,789.80

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Solution

The fourth proportional to 3,066.15, 4,230.39 and 1,789.80 is: 2,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.15 : 4,230.39 = 1,789.80 : x
  2. Step 2: Convert to fraction form
    3,066.15/4,230.39 = 1,789.80/x
  3. Step 3: Cross multiply
    3,066.15x = 4,230.39 × 1,789.80
  4. Step 4: Simplify right side
    3,066.15x = 7,571,552.02
  5. Step 5: Solve for x
    x = 7,571,552.02/3,066.15
  6. Step 6: Final answer
    x = 2,469.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.